efacec NORMAFIX Instructions Manual page 12

FUNCTIONAL PRINCIPLE
"Tumbler"
Opening and closing operations are manually
or electrically performed with a speed
CI1(M)
independent from the operator's action.
(Recharging time <= 10s at Un)
"Tumbler"
Equipped with stored-energy spring system
exclusively
operation
CI2(M)
operation that enables an eventual opening
operation in less than 100 ms through a
release magnet, a fuse or a push-button
Double function operating mechanism with
dependent operations for the SF switch and
CS1
independent operations
earthing switch (DC panels).
Earthing switch
Closing and opening speed are independent
CST
from the operator's action.
CDV Mechanism (Vacuum Circuit-Breaker)
1 – Lever (charging system the springs of circuit
breaker)
2 – Button to open and close the circuit breaker
3 – Mechanical synoptic state of circuit breaker
type operating mechanism.
type operating mechanism.
for opening. The
is followed by a
for the cable
operating mechanism.
1
2
3
APPLICATION EXAMPLES
Feeder function equipment (set a net to
service or remove it from service) and
transformer
protection through ISF fuses without
tripping). CI1M enables the ISF remote
switch operation.
Switch tripping by means of one or
more Fuses.
closing
recharge
Switch tripping due to transformers
protection relays.
Switch opening.
Enables the simultaneous control of two
SF switches (DB panels)
Enables the
switchcontrol
4 – Hole to insert lever (charging system the
springs)
5 – Maneuvers counter
6 – Mechanical synoptic state of springs
11
NORMAFIX
fuse protection
CD panel earthing
4
5
6
(load